Did he mess around with her ??

Me and the father of my child got in an argument about trust and idk quite what was said but I’m like I’m going out with (my brothers bm) and he’s like oh but u trust her she’s not even your friend and I’m like yea she is what u mean by that and he’s like ...before u got pregnant we smoked once when u and your brother went to work . I’m like wtf? Mind you every time we all hung out (me him her and my brother). “They hated each other” she wouldn’t speak to him when he pulled up and she’d roll her eyes . He’d tell me how he don’t like her attitude an she’s manly lookn etc. this was 2 years ago . I’m like why u just telling me and he’s like cuz he thought I knew . So I’m like it was once ?thought y’all hated each other and he’s like yea . He dropped me off at work and went back to my house to smoke . (Back then I thought he’d drop me off n go back to his mama house) and I’m like why u couldn’t smoke on the way home and he’s like he had to roll up n all that. He says she came outside seen him and asked to smoke with him....I ask her and first she’s like wooooooow he’s lying you know I don’t like him And I’m like that didn’t answer the questionable she Denys it. Saying she doesn’t even smoke . So I apologize thinkn he just said that to make me mad and a few days later she comes to me and admits she was in the car with him that day but she didn’t smoke she was only there cuz he wanted company ....mind you. He not goin ask you to smoke if u don’t . Cuz he used to smoke and tell me to get out the car right before he lit the blunt . So there was a reason she was in the car if she “didn’t smoke”....wasn’t there to give a dude she don’t like company ....

So I yesterday I accused them of messing around back then...they both denied it . She stopped talking to me and he’s upset .

2 yrs just finding out .

We all used to hang out n be cool for like the first month or two I was with him then she hated him and it was known. I always thought it was cuz of the stuff I’d say he was doing...

My brother even says he goes through her phone and she flirts with guys

What does it sound like to y’all?